/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 殇
 * Date: 2025-05-23
 * Time: 11:54
 */
public class Test4 {
    public static void main(String[] args) {
        //二维数组
        int[][] arr1=new int[][]{{1,2,3},{4,5,6}};
        int[][] arr2=new int[2][3];
        int[][] arr3=new int[2][];
        //int[][] arr4=new int[][3];  =>报错，行不可以省略，列可以省略

    }
}
